220331111213 has 4 divisors (see below), whose sum is σ = 229910724768. Its totient is φ = 210751497660.

The previous prime is 220331111191. The next prime is 220331111219. The reversal of 220331111213 is 312111133022.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 220331111213 - 2⁸ = 220331110957 is a prime.

It is a super-3 number, since 3×220331111213³ (a number of 35 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220331111219) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4789806743 + ... + 4789806788.

It is an arithmetic number, because the mean of its divisors is an integer number (57477681192).

Almost surely, 2^220331111213 is an apocalyptic number.

220331111213 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

It is an amenable number.

220331111213 is a deficient number, since it is larger than the sum of its proper divisors (9579613555).

220331111213 is an equidigital number, since it uses as much as digits as its factorization.

220331111213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9579613554.

The product of its (nonzero) digits is 216, while the sum is 20.

Adding to 220331111213 its reverse (312111133022), we get a palindrome (532442244235).

The spelling of 220331111213 in words is "two hundred twenty billion, three hundred thirty-one million, one hundred eleven thousand, two hundred thirteen".